Assassin

This is story related and cannot be missed.
This achievement is available to acquire in mission 16.

At the start of the mission you will be attacked by another ace pilot. Just like the previous pilot they are more advanced flyers and have more health than standard.

This pilot was the easiest to kill out of the four. He did not seem to dodge that much, more just follow a route and then stick to it. If not then follow the below tactic.

The two tactics for these are to either follow the pilot until he goes outward to try to get on your six, or you could fly out yourself and hopefully will not get followed so when you turn around you can cause some real damage.